Elongations

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“We have been working with you since more than 10 years. During this period your quality & delivery performance found is very good. Even when we arranged a supplier meet in 2012 we awarded you as a best supplier of the year in Bought out item category. Whenever we had any new developments your support was perfect. Overall your performance was very good & we hope the same in future too, We wish you all the best for your business growth.”
Sidel India Pvt. Ltd.
“We are working with Harkesh Rubber since 3 years. Our initial development of few seals for one of the important project developed and supplied by them as per the schedule. We found the quality and commitment for overall business is good. The response and technical support for our need is fair and on-time. Overall the services and co-operation found to be satisfactory. We wish the young and energetic Harkesh Rubber team a very best in all the future endeavours.”
Festo India Pvt Ltd.
“Harkesh Rubber Industries has been our co-partner for the supply of the rubber and its allied products from past 2 years which we used in our daily final product made for Indian Railways. We find the quality of product supplied by them in superior quality which lowest lead time. Overall the services and cooperation found out to be satisfactory in all key areas.”
Crompton Greaves Limited
“Harkesh Rubber Industries has been our co-partner for the supply of the rubber and its allied products from past 2 years which we used in our daily final product made for Indian Railways. We find the quality of product supplied by them in superior quality which lowest lead time. Overall the services and cooperation found out to be satisfactory in all key areas.”
Crompton Greaves Limited
“In all honesty I have to say that for us it's really a pleasure to do business with you now already more than 5 years. In the whole time you had never let us down, your delivery performance is nearly perfect, the service which we get is quicker than quick. The product quality has been never a problem and when we had an issue you help us always to solve it. This reliability is where we trust in and what makes our decision to work with you also in the future very easy.”
ARCA Regler GMBH
“Dear Harkesh Rubber Team, We have been working with you since last 6 years. During this period your Quality, Delivery and Performance found very good and consistent. During the development of new products specially FKM/FPM gaskets, we had very good technical support by your team, and we hope in future it will remain same. We wish you all the best for your business growth. Thanking you,”
Georg Fischer Piping Systems Pvt. Ltd.

Tensile Strength (TS)

Elongation is the length of the material at breaking point and is indicated as the percentage of its initial length. For instance, if an elastomer reaches twice its original length before breaking, the elongation would be indicated as 100%.

Importance

An elastomer can be qualified mechanically by measuring the force that takes the rubber sample to its rupture point. The elongation for elastomers needs to be determined to choose the best option.

Since elongating a rubber sample leads to deformation, it is important to know, as the sample gets stretched, certain sections will start reducing and eventually tear.

Measurement

The test can determine the variability in elastomer vulcanizates and parameters influencing the stress-strain properties like preconditioning of rubber, temperature, and relative humidity.

A traction device, known as the dynamometer can be used to measure the size of the rubber sample during extension, and when the breaking point occurs.

O-ring rubber samples are rotated during extension to ensure specific zones remain unaffected.

Calculating

When gauge marks are used to determine specific test sections, only the length is used for calculation. The distance between the grips is also used as the original gauge length.

Results/Reporting

As stated above, the elongation is indicated in the form of percentage and is indicated as two significant figures.

Elongation percentage = (elongation at tear) x 100/(original gauge length)

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